Authors Klaimy, S; Lamonier, JF; Casetta, M; Heymans, S; Duquesne, S in ELSEVIER SCI LTD published article about HIGH-DENSITY POLYETHYLENE; FLUIDIZED-BED REACTOR; THERMAL-DEGRADATION; CATALYTIC DEGRADATION; POLYPROPYLENE; POLYSTYRENE; FUEL; TEMPERATURE; RECOVERY in [Klaimy, S.; Casetta, M.; Duquesne, S.] Univ Lille, UMET Unite Mat & Transformat, Cent Lille, CNRS,INRAE,UMR 8207, F-59000 Lille, France; [Klaimy, S.; Lamonier, J-F] Univ Lille, Univ Artois, UCCS Unite Catalyse & Chim Solide, CNRS,Cent Lille,ENSCL,UMR 8181, F-59000 Lille, France; [Heymans, S.] NeoEco, Zone Commerciale, 1 Rue Source, F-59320 Hallennes Lez Haubourdin, France in 2021.0, Cited 44.0. Quality Control of 3-Methylbenzoic acid. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7
Recovery of plastic waste is becoming crucial since the amount of such waste increases continuously. The objective of this study is to investigate the potential of the pyrolysis technique for the recovery of plastic waste. In that frame, the influence of temperature (550 degrees C or 600 degrees C) on the pyrolysis of pure polypropylene (PP), polyethylene (PE), polystyrene (PS) and polyethylene terephthalate (PET) was first studied. It is shown that whatever the type of polymer, aromatic compounds are mainly formed and could reach 55wt.-% of the oil fraction for PP and 31wt.-% for PE at 550 degrees C. In a second step, a PP/PE mixture and a model mixture representative of the packaging plastic waste stream were pyrolyzed to investigate the influence of a combination of polymers on the proportions and composition of the different fractions. The pyrolysis of the polymer mixtures shows that, even if the aromatic compounds formed are similar to those obtained for the virgin polymers, the proportion of aromatic compounds is much more important than when the polymers are pyrolyzed alone. Indeed, mixing PE with PP at a 50/50 ratio does not affect the amount of liquid, gas and solid fractions but leads to the formation of a higher quantity of xylene (39 wt-%) at 550 degrees C. The combination of the plastics in the model mixture has also led to a decrease of the amount of waxy compounds. Furthermore, it was shown that a higher amount of aromatics than expected was formed. As a conclusion, this study demonstrates that pyrolysis is an effective technique to recover plastic waste as aromatic compounds for the petroleum industry. In the specific conditions used in this study (proposed model mixture and pyrolysis conditions), it will favor the idea that sorting is not needed to recover plastic waste through pyrolysis since aromatics formation is favored when the stream is composed of a mixture of polymers. (C) 2021 Published by Elsevier Ltd.
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Reference:
Isothiazole – Wikipedia,
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